Open AccessGain‐enhanced antenna backed with the fractal artificial magnetic conductor
Author(s) -
Zhang Binzhen,
Yao Pei,
Duan Junping
Publication year - 2018
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2017.1130
Subject(s) - conductor , radiation pattern , antenna gain , optics , fractal antenna , bandwidth (computing) , antenna measurement , antenna factor , fractal , materials science , antenna (radio) , electrical engineering , physics , engineering , telecommunications , mathematics , mathematical analysis , composite material
The authors proposed a unidirectional, high‐gain antenna loaded with the artificial magnetic conductor (AMC) back‐cavity, which generates the reflection phase of 0° for gain enhancement in a low profile. The working bandwidth of the AMC unit cell is extended to 5.1–7.4 GHz (36.5%) by applying the fractal technology. The radiation performance improvement, wider bandwidth and increased gain are obtained for the composite antenna mounted on the fractal AMC reflector with the distance of 2 mm (0.04 wavelength at the central frequency of 6 GHz). The simulated results indicated that the operational bandwidth of the proposed antenna ranges from 4.7 to 8 GHz (52.0%). Besides, an average gain enhancement of 4 dB as compared to the original antenna without AMC back‐cavity is achieved over the entire operating band. In addition, the proposed antenna is manufactured and tested, the measured results coincide well with the simulated counterparts.